Knife



FIG. 1 is a perspective view of a knife showing my new design;

FIG. 2 is a front elevational view of the knife;

FIG. 3 is a rear elevational view of the knife;

FIG. 4 is a right side elevational view of the knife and it is to be understood that the left side elevational view of the knife would be a mirror image of that showin in FIG. 4;

FIG. 5 is a top plan view of the knife; and,

FIG. 6 is a bottom plan view of the knife. 

The ornamental design for a knife, as shown and described. 